E100_Bluetooth speakers,3W output power,lithium battery, NdFeB Speaker, compact design with maximum portability.

Features:
Palm-size disign with ultimate portability
BLUETOOTH function, enjoy music wirelessly
Built-in 400mA/3.7V rechargeable lithium battery
Can play about 4 hours at medium volume after fully charged
NdFeB Speaker inside, high quality sound quality

Specifications:
Bluetooth protocol: V2.1 and EDR class II
Rated output power: 3W
Input power: mini USB 5V/Lithium battery (400mA/3.7V)
Charging voltage: 5.0V DC
Frequency response: 20Hz to 20KHz
Impedance: 4Ω
Battery capacity: 400mAh
Working distance: 5 to 15m
Speaker size: 1.5 inch x 1
Distortion: 1% (3.7V, 1KHZ, 1W)
S/N ratio: 82dB
Colors: green, pink, white and blue
Product Size: (L)75x(W)75x(H)48mm
Net weight: 95g
Package size: (L)135x(W)90x(H)55mm
Package G.W.: 250g